如何以編程方式創建此工具欄

Question

我真的很難以編程方式創建UIToolBar（沒有xib文件）。這是我想創建的。

但直到現在，我覺得我還沒有以正確的方式接近它。我曾嘗試添加一個barbuttonitem，但我不能創建png中顯示的效果。我應該如何去做。需要幫助。

編輯：我添加了一個更大的圖像

Answer 1

UIBarButtonItem *spaceItem = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:nil action:nil]; 
[self.navigationController.toolbar setBarStyle:UIBarStyleBlackOpaque]; 
UIBarButtonItem *customItem = [[UIBarButtonItem alloc] initWithTitle:@"toolbar title" style:UIBarButtonItemStylePlain target:self  action:@selector(onToolbarTapped:)]; 
NSArray *toolbarItems = [NSArray arrayWithObjects:spaceItem, customItem, spaceItem, nil]; 

[self setToolbarItems:toolbarItems animated:NO]; 

Answer 2

UIToolbar *toolbar = [UIToolbar new]; 
toolbar.barStyle = UIBarStyleBlackTranslucent; 
toolbar.backgroundColor = [UIColor clearColor]; 

然後添加一個UIBarButtonItem到toolbar。

Answer 3

工具欄和按鈕具有自定義圖像

- (void)viewDidLoad { 
    [super viewDidLoad]; 

    UIToolbar *myToolbar = [[UIToolbar alloc] initWithFrame:CGRectMake(0, self.view.frame.size.height - 44, 320, 44)]; 
    [myToolbar insertSubview:[[[UIImageView alloc] initWithImage:[UIImage imageNamed:@"toolbar_40.png"]] autorelease] atIndex:0]; 

    UIBarButtonItem *barButtonDone = [self createImageButtonItemWithNoTitle:@"button_down.png" target:self action:@selector(closeMe:)]; 
    UIBarButtonItem *barButtonShare = [self createImageButtonItemWithNoTitle:@"button_share.png" target:self action:@selector(actionShareButton:)]; 
    UIBarButtonItem *barButtonFlexibleGap = [[[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:nil action:nil]autorelease]; 
    myToolbar.items = [NSArray arrayWithObjects:barButtonDone,barButtonFlexibleGap,barButtonShare,nil]; 

    [self.view addSubview:myToolbar]; 
    [myToolbar release]; 
} 

-(void)closeMe:(id)sender 
{ 
    NSLog(@"closeMe"); 
} 

-(void)actionShareButton:(id)sender 
{ 
    NSLog(@"actionShareButton"); 
} 

-(UIBarButtonItem *)createImageButtonItemWithNoTitle:(NSString *)imagePath target:(id)tgt action:(SEL)a 
{ 
    UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom]; 

    UIImage *buttonImage = [[UIImage imageNamed:@"button_slice.png"] stretchableImageWithLeftCapWidth:5 topCapHeight:0]; 
    UIImage *buttonPressedImage = [[UIImage imageNamed:@"button_slice_over.png"] stretchableImageWithLeftCapWidth:5 topCapHeight:0]; 

    CGRect buttonFrame = [button frame]; 
    buttonFrame.size.width = 32; 
    buttonFrame.size.height = 32; 
    [button setFrame:buttonFrame]; 

    UIImageView *imageView = [[UIImageView alloc]initWithFrame:CGRectMake(0, 0, 32, 32)]; 
    imageView.image = [UIImage imageNamed:imagePath]; 
    [button addSubview:imageView]; 
    [imageView release]; 

    [button setBackgroundImage:buttonImage forState:UIControlStateNormal]; 
    [button setBackgroundImage:buttonPressedImage forState:UIControlStateHighlighted]; 

    [button addTarget:tgt action:a forControlEvents:UIControlEventTouchUpInside]; 

    UIBarButtonItem *buttonItem = [[UIBarButtonItem alloc] initWithCustomView:button]; 

    return [buttonItem autorelease]; 

} 

這些PNG文件需要被添加

1. toolbar_40.png工具欄圖像
2. button_down.png的按鈕圖像
3. button_share。 png按鈕圖片
4. button_slice.png按鈕背景
5. button_slice_over.png的按鈕背景（按下）

Answer 4

UIToolbar *myToolbar = [[UIToolbar alloc] initWithFrame:CGRectMake(0, self.view.frame.size.height - 44, 320, 44)]; 
myToolbar.barStyle = UIBarStyleBlack; 

UILabel *myLabel = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, 320, 44)]; 
myLabel.text = @"Sperre aufheben"; 
myLabel.textColor = [UIColor whiteColor]; 
myLabel.textAlignment = UITextAlignmentCenter; 
myLabel.backgroundColor = [UIColor clearColor]; 

[myToolbar addSubview:myLabel]; 
[self.view addSubview:myToolbar]; 

[myLabel release]; 
[myToolbar release]; 

Answer 5

用的CGRect創建工具欄來把它放在你想

UIToolbar *myToolbar = [[UIToolbar alloc] initWithFrame:CGRectMake(x, y, width, height)]; 

您可以通過背景圖片自定義，標題，文字顏色，背景顏色，...

下一個創建按鈕

UIBarButtonItem *theButton = [UIBarButtonItem alloc] initWithTitle:@"button title" style:UIBarButtonItemStylePlain target:self  action:@selector(selector:)]; 

將它添加到工具欄YOUT：

NSArray *buttons = [NSArray arrayWithObjects: theButton, nil]; 
[myToolbar setItems:buttons animated:NO] 

工具欄添加到當前視圖

[self.view addSubview:mytoolbar] 

剛剛輸入沒有經過測試，希望對大家有所幫助

Answer 6

好像更好的適合導航欄（至少如果你保持你正在做的事情的精神：IE添加標題到屏幕底部）

無論如何，我創建了一個簡單的測試項目，這是我所做的功能，你可能不得不將它插入到視圖/控制器不同，但它得到你想要的相對容易，不使用按鈕bar

- (void)viewDidLoad { 

    [super viewDidLoad]; 

    UINavigationBar *navBar = [[UINavigationBar alloc] initWithFrame:CGRectMake(0, self.view.frame.size.height - 44, 320, 44)]; 
    [navBar setBarStyle:UIBarStyleBlack]; 

    UINavigationItem *title = [[UINavigationItem alloc] initWithTitle:@"Your Title"]; 
    NSArray *array = [[NSArray alloc] initWithObjects:title, nil]; 

    [navBar setItems:array]; 

    [self.view addSubview:navBar]; 
}